Lamp



J. MHmLL. LAMP. PPLICATIUN FILED IUHE I?, 1920.

1,403,147, i @mma .um 10,1922.

mvEmoR ACK CATumu.

`INI L A U//f/ 2oV mex caratura., F Los ANGELES', CALIFORNIA.

LAMP.

Specification of Letters Patent.

Patented Jan. 10, 1922.

Application filed June 17, 1920. Serial No. 389,700.

'. `To .whom it may concern:

13e it known that I, JACK GATHRILL. a jc1t1zen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, hare invented new anduseful Improvements in a Lamp. of Vwhich ythe following is a. specification.

-My invention relates to electric lamps and my object is to provide` an improved detachable shield and reflector for shielding the upper rays ofthe light and reflecting them downwardly in front of the lamp.

. My invention is illustrated in the accompanyihg drawing, forming n part of this specication, in which:

Figure 1 is a perspective view of a hand lamp embodying my invention.

Figure 2 is a longitudinal section of the 1am shown in Fi ure 1.

F1 re 3 is a ottom shiel and reflector.

Figure 4 is a front view of the shield and reflector.

Figure 5 is a side view of an automobile head light embodying my invention.

In the drawing, 1 indicates the lamp casing which is formed in three sections, a rear cup-shaped section 2, an intermediate section 3, and a forward annular section 4, A hollow handle 5 extends rearwardly from the rear wall 6 of the rear section 2. The section 2 has an external annular head T. an inwardly offset annulus f8 forwardly of said bend and an inwardly curved flange 9. The section 3 has an annular side wall 1U and a parabolic lamp reflector 11 joined at its outer forward edge to the forward edge of the annular side wall 10. (ln the lcar end of the wall 10 is an annular external bead 12. The annular wall 10 telescopes over the annulus 8, the bead 12 engaging the bead 7 and limiting the rearward position of the section 3 on the sect-ion 2Y The reflector 11 has a rearwardly extendingr lamp socket 13 which receives an electric light 14, the leads 15 and 16 of which extend through said socket and through thc handle 5. On thc rear edge and on the forward edge of the section 4 are annular external beads 17 and 18 respectively. ["roru the upper half 0f the forward edge of thisection 4 extends a curved shield :ind ro. flcctor 20 which is partly spherical in ser tion. The section 4 telescopes over the :innular wall 10 of the section 3. the bead i7 engaging the bead 12 and limiting the rearplan view of thc ward position o f the section 4 on the se'ction 3. reflector 20 has an external bead 21. the forward end of the section 4 is detachably fitted an annular glass frame 22 having an linternal bead 23 at4 its forward edge a a1nst the linner edge of which rests a gass 24 inside the frame; clips 25 being struck out of the frame and bent a ainst the inner surface of said glass to ho d the glass against said bead in position in said frame.

A split ring lamp 26 having internal flanges 27 and l lits over the beads 7, 12 and 17, said flanges engaging the beads 7 and 17 to hold the sections 2, 3 and 4 in telescopic relation to each other. On the ends of the clamp ring are outwardly eittending lugs 29 and 30. A screw 31 extends through the lug 29 and engages the lug BO to draw the clamp tightly upon the casing 1 over the beads 7. 12 and 17. thus clamping the sect-ions 2. 3 and 4 in proper telescopic relation to each other'.

The partly spherical shield and reflector 20 extends along the upper half of the annular section 1 and projects outwardly and downwardlyY therefrom with its lower edge lying substantially on a plane with the horizontal diameter of the annular section 4. thus covering the upper half of the space bounded by the annular section and forming a downwardly facing spherical reflective surface on its underside which will act to cut oil' the upwardly projecting light rays from the reflector 11 to an observer facing the lamp and reflect these rays downwardly both to the front and to the side of the lamp when the latter is disposed horizontal. This renders the lamp particularliY serviceable either as a Spot light` as shown in Figure 1, and as a headlight for vehicles. as shown in Figure 5; the combined shield and reflector serving to prevent the blinding glare incident to the ordinary headlights.

I claim:

1. In an electric lamp, a casing comprising a rear section, an intermediate section, and a forward section` the intermediate section telescoping over the rear section, and the forward section telescoping over the intermediate section. a lamp reflector on the intermediate section, an electric light mounted in said reflector. a shield and reflector extending from the upper part ofthe forward section for shielding the upper half of the The lower edge of the shield and Inp light and reflecting it downwardly in front of the lamp, and means for holding said sec-- tions in proper telescopic relation to each other.

2. In an electric lamp, a. lamp casing comprising a. rear Section, an intermediate Sec:- tion, and a forward section, an annular ex ternal bead on said rear section, an annular external bead on said intermediate section, said intermediate section telescoping over the said end of said rear section, and said heads engaging each other to limit the telescopic position o f said intermediate section on said rear section, an annular external head on the rear edge of said forward section engaging the bead on said intermediate section, a'ring clamp littln over said beads, said clamp being 'forme with inturned flanges at its edges for engagin the beads on said rear section and said orward section respectively, alrelector on said intermediate section, an electric light mounted in said reflector, and a shield and reflector mounted on the upper part of said forward section for shielding the light of the upper portion of the lamp and reflecting said light downwardl in front of the lamp.

3. n an electric lamp, a lamp casing com prising a rear section having an external annular bead and a marginal annulus forward of the bead, an annular front section adapted to slip over the annulus having an external bead on its rear end to lie parallel with the head 0n therear section; said front section being rovided at its forward end with a curve shieldand reflector partly spherical in section extending outwardly over the upper half of the Space bounded by the front section with its lower edge sul) stantially on a plane with the horizontal diameter of the front section, and a split ring clamp having internal flanges adapted to set astride the heads on said front and rear sections.

JACK UATHRILL. 

